A cationic carrier for the diffuse interstellar band at 862.1 nm: Evidence of the skin effect in nearby diffuse to translucent clouds

Home

All issues

Volume 708 (April 2026)

A&A, 708 (2026) A181

Full HTML

Open Access

Table 2

Results of the selected PLM for each cloud.

Name	N_los	n_p	C	α	k
Ophiuchus	909	2	${2.21}_{- 0.01}^{+ 0.01}$ $Mathematical equation: $2.21_{-0.01}^{+0.01}$$	$α_{1} = - {0.49}_{- 0.02}^{+ 0.02}, α_{2} = - {0.90}_{- 0.05}^{+ 0.05}$ $Mathematical equation: $\alpha_1=-0.49_{-0.02}^{+0.02}$, $\alpha_2=-0.90_{-0.05}^{+0.05}$$	$k_{1} = - {0.07}_{- 0.01}^{+ 0.01}$ $Mathematical equation: $k_1=-0.07_{-0.01}^{+0.01}$$
Chamaeleon	390	2	${2.18}_{- 0.02}^{+ 0.02}$ $Mathematical equation: $2.18_{-0.02}^{+0.02}$$	$α_{1} = - {0.57}_{- 0.06}^{+ 0.05}, α_{2} = - {1.13}_{- 0.12}^{+ 0.12}$ $Mathematical equation: $\alpha_1=-0.57_{-0.06}^{+0.05}$, $\alpha_2=-1.13_{-0.12}^{+0.12}$$	$k_{1} = - {0.31}_{- 0.01}^{+ 0.01}$ $Mathematical equation: $k_1=-0.31_{-0.01}^{+0.01}$$
Taurus	174	2	${2.14}_{- 0.01}^{+ 0.01}$ $Mathematical equation: $2.14_{-0.01}^{+0.01}$$	$α_{1} = - {0.59}_{- 0.06}^{+ 0.06}, α_{2} = - {1.30}_{- 0.13}^{+ 0.13}$ $Mathematical equation: $\alpha_1=-0.59_{-0.06}^{+0.06}$, $\alpha_2=-1.30_{-0.13}^{+0.13}$$	$k_{1} = - {0.01}_{- 0.01}^{+ 0.01}$ $Mathematical equation: $k_1=-0.01_{-0.01}^{+0.01}$$
Hercules	70	1	${2.03}_{- 0.01}^{+ 0.01}$ $Mathematical equation: $2.03_{-0.01}^{+0.01}$$	$α_{1} = - {1.06}_{- 0.05}^{+ 0.05}$ $Mathematical equation: $\alpha_1=-1.06_{-0.05}^{+0.05}$$	...
Perseus	131	3	${2.18}_{- 0.01}^{+ 0.01}$ $Mathematical equation: $2.18_{-0.01}^{+0.01}$$	$α_{1} = - {0.53}_{- 0.04}^{+ 0.04}, α_{2} = - {2.40}_{- 0.25}^{+ 0.23}, α_{3} = - {0.06}_{- 0.46}^{+ 0.45}$ $Mathematical equation: $\alpha_1=-0.53_{-0.04}^{+0.04}$, $\alpha_2=-2.40_{-0.25}^{+0.23}$, $\alpha_3=-0.06_{-0.46}^{+0.45}$$	$k_{1} = {0.03}_{- 0.01}^{+ 0.01}, k_{2} = {0.16}_{- 0.01}^{+ 0.01}$ $Mathematical equation: $k_1=0.03_{-0.01}^{+0.01}$, $k_2=0.16_{-0.01}^{+0.01}$$
Orion B	235	2	${2.23}_{- 0.01}^{+ 0.02}$ $Mathematical equation: $2.23_{-0.01}^{+0.02}$$	$α_{1} = - {0.23}_{- 0.05}^{+ 0.11}, α_{2} = - {0.95}_{- 0.12}^{+ 0.17}$ $Mathematical equation: $\alpha_1=-0.23_{-0.05}^{+0.11}$, $\alpha_2=-0.95_{-0.12}^{+0.17}$$	$k_{1} = {0.03}_{- 0.04}^{+ 0.01}$ $Mathematical equation: $k_1=0.03_{-0.04}^{+0.01}$$
Orion A	67	1	${2.07}_{- 0.01}^{+ 0.01}$ $Mathematical equation: $2.07_{-0.01}^{+0.01}$$	$α_{1} = - {0.74}_{- 0.02}^{+ 0.02}$ $Mathematical equation: $\alpha_1=-0.74_{-0.02}^{+0.02}$$	...
California	459	2	${2.18}_{- 0.01}^{+ 0.01}$ $Mathematical equation: $2.18_{-0.01}^{+0.01}$$	$α_{1} = - {0.46}_{- 0.02}^{+ 0.02}, α_{2} = - {0.87}_{- 0.05}^{+ 0.05}$ $Mathematical equation: $\alpha_1=-0.46_{-0.02}^{+0.02}$, $\alpha_2=-0.87_{-0.05}^{+0.05}$$	$k_{1} = {0.14}_{- 0.01}^{+ 0.01}$ $Mathematical equation: $k_1=0.14_{-0.01}^{+0.01}$$
Mon OB1	45	2	${2.18}_{- 0.01}^{+ 0.01}$ $Mathematical equation: $2.18_{-0.01}^{+0.01}$$	$α_{1} = - {0.86}_{- 0.05}^{+ 0.05}, α_{2} = {13.65}_{- 0.70}^{+ 0.40}$ $Mathematical equation: $\alpha_1=-0.86_{-0.05}^{+0.05}$, $\alpha_2=13.65_{-0.70}^{+0.40}$$	$k_{1} = {0.31}_{- 0.01}^{+ 0.01}$ $Mathematical equation: $k_1=0.31_{-0.01}^{+0.01}$$
Mon R2	38	2	${2.16}_{- 0.01}^{+ 0.01}$ $Mathematical equation: $2.16_{-0.01}^{+0.01}$$	$α_{1} = - {0.96}_{- 0.09}^{+ 0.09}, α_{2} = {0.09}_{- 0.47}^{+ 0.96}$ $Mathematical equation: $\alpha_1=-0.96_{-0.09}^{+0.09}$, $\alpha_2=0.09_{-0.47}^{+0.96}$$	$k_{1} = {0.25}_{- 0.05}^{+ 0.14}$ $Mathematical equation: $k_1=0.25_{-0.05}^{+0.14}$$
Cepheus South	73	2	${2.31}_{- 0.01}^{+ 0.01}$ $Mathematical equation: $2.31_{-0.01}^{+0.01}$$	$α_{1} = - {0.57}_{- 0.07}^{+ 0.07}, α_{2} = - {1.46}_{- 0.38}^{+ 0.27}$ $Mathematical equation: $\alpha_1=-0.57_{-0.07}^{+0.07}$, $\alpha_2=-1.46_{-0.38}^{+0.27}$$	$k_{1} = {0.22}_{- 0.04}^{+ 0.04}$ $Mathematical equation: $k_1=0.22_{-0.04}^{+0.04}$$
Canis Major	31	2	${2.42}_{- 0.01}^{+ 0.01}$ $Mathematical equation: $2.42_{-0.01}^{+0.01}$$	$α_{1} = - {0.30}_{- 0.07}^{+ 0.07}, α_{2} = - {1.20}_{- 0.16}^{+ 0.16}$ $Mathematical equation: $\alpha_1=-0.30_{-0.07}^{+0.07}$, $\alpha_2=-1.20_{-0.16}^{+0.16}$$	$k_{1} = - {0.08}_{- 0.01}^{+ 0.01}$ $Mathematical equation: $k_1=-0.08_{-0.01}^{+0.01}$$

Notes. i The PLM fit to Cepheus South is with outlier clipping (see Sect. 4). ii For Mon OB1, only α₁ is treated as a reasonable and valid fitted slope. Columns: 1 N_los: Number of sightlines with W₈₆₂₁ and AV measurements in each cloud. 2 n_p: Number of linear segments for the selected PLM. 3 C: intercept. 4 α: fitted and calculated slopes of each linear segment in PLM ( $α_{i + 1} = α_{1} + \sum_{j = 1}^{i} Δ α_{j}$ $Mathematical equation: $ \alpha_{i+1} = \alpha_1 + \sum_{j=1}^{i} \Delta \alpha_j $$ when i > 1) 5 k: fitted knot position in PLM.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.